Proto J72133M Impact Socket Set 10pc 3/8 in Drive Metric

Product Description

The PROTO J72133M is a 10-piece metric impact standard socket set built for trade professionals who need reliable, hard-use sockets in demanding service environments. Driven by a 3/8 inch drive, the set spans 8 mm through 17 mm with 6-point geometry for maximum contact on fastener flats and reduced risk of rounding. Sockets are constructed from steel and organized on a clip rail for quick inventory and jobsite access. This set suits HVAC, plumbing, electrical, and general mechanical work where impact-rated sockets are required for air and cordless impact drivers.

The J72133M is intended for use with 3/8 inch drive impact wrenches and ratchets in both residential and light commercial service applications. The 6-point profile makes it appropriate for metric fasteners commonly found on equipment panels, access covers, motor mounts, and mechanical assemblies. The clip rail storage keeps the set organized in a service van or tool bag and allows techs to verify at a glance that all sockets are accounted for between calls.

Key Features

• 10-piece metric set covering 8 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, and 18 mm sockets
• 3/8 inch drive compatible with standard impact wrenches and ratchets
• 6-point socket geometry reduces fastener rounding under high torque
• Steel construction rated for impact use
• Clip rail container keeps sockets organized and inventory-visible

Compatibility

Designed for use with 3/8 inch drive impact wrenches, cordless impact drivers, and ratchets accepting standard 3/8 inch drive tooling.

Installation Notes

Impact-rated sockets should only be used with impact wrenches or drivers — do not substitute chrome hand-tool sockets in impact applications. Inspect sockets for cracks or deformation before each use and remove any damaged socket from service immediately. Ensure the drive detent or locking pin is fully engaged before applying torque to prevent the socket from ejecting under load.